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VMariaS [17]
3 years ago
6

Please help due in 20 minutes!

Mathematics
2 answers:
In-s [12.5K]3 years ago
8 0

Answer:

x =12

Step-by-step explanation:

We use the Pythagorean theorem

a^2 + b^2 =c^2 where a and b are the legs and c is the hypotenuse

x^2 + 5^2 = 13^2

x^2 +25 =169

Subtract 25 from each side

x^2 +25-25=169-25

x^2 = 144

Take the square root of each side

sqrt(x^2) = sqrt(144)

x = 12

Sliva [168]3 years ago
6 0

Answer: 12

Step-by-step explanation:

13 times 5 = 56

then divide 56 by 2

=12

x^2 +25 =169

Subtract 25 from each side

x^2 +25-25=169-25

x^2 = 144

x = 12

hope this helps :)

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A) a vertical line does not represent a function.

Step-by-step explanation:

For a relation to be a function for each value of x there must be only one value of y. In other words a function is one in which each value in the domain set corresponds to only one value in the range set.

Let us check for this condition in the give choices:

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D) {(1, 7), (3,7), (5, 7), (7,7)}

For the given set for different x valuesthere is only one y value.

So, its a Function

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